15 Essays on Infinite Lifespans   Artificial  Intelligence  Laboratory.  He  proposes  humankind will indeed leave behind the constraints of biological mor- tality  –  not  only  conquering  death,  but  also  expanding  in consciousness. “All very well,” one might contend. But will these predic- tions come true within our own life spans? For those who seek to conquer death, dreams of a distant future might not suf- fice. However, Dr. Brian Wowk, physicist and cryobiologist introduces us to “Medical Time Travel” via cryopreservation – the science of maintaining the human brain until the scien- tific predictions that we were considering in this section have indeed come to pass.